I'm on my second month of birth control,and I've never missed a day. I take it every day around 5:30. I took it last night at 5:30. Later last night I had unprotected sex. Around 11:30 pm I had a small amount of diarrhea. Will that effect my pill? Have my chances of pregnancy gone up? Or not because I had diarrhea six hours after taking my pill? It was just a small amount but I want to be safe.